The six-week check has acquired a meaning it was never meant to carry.
For a lot of women it functions as a starting gun. Cleared at six weeks, therefore cleared for everything — the class, the run, the weights, whatever you were doing before.
But six weeks is a date on a calendar, not an assessment of what your body can currently tolerate. And the tissues involved are working to their own timetable regardless of what the diary says. After a caesarean, the abdominal wall has regained only around half its tensile strength at six weeks, reaching roughly three-quarters to most of it by six or seven months.
A more useful approach replaces the date with a set of criteria. Here’s what those look like, stage by stage.
Stage One: The Early Weeks
What belongs here: Walking, gentle breathing work, gentle pelvic floor activation, comfortable positions, and getting used to moving again.
What you’re building: Not strength yet. Coordination and awareness — specifically, the relationship between your breath, your abdominal wall and your pelvic floor. These work as a system that manages pressure, and re-establishing that connection underpins everything that follows.
A note on pelvic floor exercises: After birth, many women can’t produce an effective contraction without guidance, particularly if they didn’t train these muscles beforehand. Doing them enthusiastically but incorrectly is common. And as covered elsewhere, some women need to learn to release rather than squeeze — which is why an assessment is worth more than a generic instruction.
Ready to progress when: You can walk comfortably for 20 to 30 minutes, you can feel a pelvic floor contraction and a release, daily activities don’t produce heaviness or leaking, and any bleeding has settled.
Stage Two: Loading, Roughly Six Weeks Onwards
What belongs here: Bodyweight strength work, progressive resistance, and this is where well-delivered postnatal Pilates fits naturally.
Why Pilates suits this stage specifically: A good postnatal class works on breath and pressure management, builds control before load, progresses gradually, and can be adapted around a caesarean scar or a pelvic floor that isn’t yet tolerating much. Those are exactly the qualities this stage requires.
What makes a class genuinely postnatal:
The instructor has postnatal-specific training, not just a general qualification.
They ask about your birth — vaginal or caesarean, tearing, complications, and how long ago.
They teach breath and pelvic floor coordination rather than telling you to “engage your core” and leaving you to interpret it.
They watch for doming along your midline and modify accordingly.
They offer progressions and regressions rather than one version for everyone.
They know when to send you elsewhere.
What should make you cautious: Full sit-ups, crunches and double leg lowering early on. Heavy loaded plank work before you’ve built up to it. Any class where nobody asked about your birth. Language about “bouncing back” or “getting your body back” — which tells you something about the priorities in the room.
Ready to progress when: You can manage a full class without doming, leaking, heaviness or pain, either during or the following day.
Stage Three: Impact, and the Criteria That Matter
This is where the evidence is most specific, and it’s worth knowing.
Guidelines published in 2019 by Goom, Donnelly and Brockwell recommend that return to running isn’t advised before three to six months postnatally, with around twelve weeks as an absolute minimum — and later still if symptoms of pelvic floor dysfunction are present. Those timelines apply regardless of how you gave birth.
More usefully, they’re criteria-based rather than purely time-based. Broadly, you should be able to manage a set of load and impact tests without symptoms:
Walking 30 minutes. Single-leg balance. Single-leg squats. Jogging on the spot. Forward bounds. Hopping. Single-leg running-man movements.
Alongside pelvic floor benchmarks — including the ability to perform around ten quick contractions with a clear on and off each time, and to hold a maximal contraction, with good coordination.
The pass mark: none of it produces leaking, heaviness or dragging, pain, or abdominal doming — during or afterwards.
If any of those appear, that’s information, not failure. It means the tissue isn’t ready for that load yet, and pushing on tends to entrench the problem rather than train through it.
Something worth knowing: injury to the pelvic floor muscles at their attachment occurs in a meaningful proportion of vaginal births — reported in the region of 15 to 30 percent — and is associated with greater risk of prolapse. It doesn’t always announce itself. This is a large part of why an assessment is recommended before impact, even for women who feel fine.
Stage Four: Back to What You Actually Want
Whatever that is — running, netball, lifting, riding, dance. Same principles: progress one variable at a time, monitor symptoms during and the day after, and expect the timeline to be longer than you’d like.
The Things That Skew the Timeline
Sleep. Broken sleep affects tissue recovery, pain sensitivity and judgement about load. If you’re deeply sleep-deprived, that’s a reason to progress more slowly.
Feeding. Breastfeeding influences hormone levels in ways that affect tissue quality, and it adds an energy demand.
Energy availability. Training hard while under-fuelled — which is easy to slip into with a new baby — carries real risks, including to bone health and pelvic floor function. Eat enough.
Carrying. Lifting a growing baby, a car seat and a pram is significant daily loading that never appears in anyone’s training log. It counts.
Your mental health. Readiness isn’t only physical. Guidance in this area suggests screening for postnatal depression as part of assessing readiness to return to sport, and that’s a sensible inclusion. Exercise can support mental health enormously — and returning under pressure, to a body you’re being told should look different, can do the opposite.
Signs to Stop and Get Assessed
During or after activity: leaking urine or bowel contents, heaviness or dragging in the pelvis, pelvic or vaginal pain, doming along the midline, low back or pelvic girdle pain that worsens with training, or pain around a caesarean scar.
Seek medical advice for new heavy bleeding, signs of wound infection, fever, severe pain, calf pain and swelling, or a bulge you can feel or see vaginally.
The Reframe
The question isn’t “how many weeks has it been?” It’s “what can my body currently manage without symptoms, and how do I build from there?”
That’s a slower framing, and it’s the one that gets women back to what they want to do without spending the next decade managing something avoidable.
Find Out Where You Actually Are
An assessment tells you which stage you’re at, which is considerably more useful than a date.
Chadwick’s Physiotherapy offers a free discovery visit at no cost and no obligation. You’ll get an assessment of your pelvic floor, abdominal wall and caesarean scar where relevant, testing against the criteria that matter for what you want to get back to, and a realistic plan for getting there.
Whether you’re six weeks or six years postnatal, it’s worth knowing where you stand.